#pragma once
//#include <iostream>
//#include <string>
//#include <unistd.h>
//#include <iomanip>
//#include <cstdio>
//#include <cstdlib>
//using namespace std;
//
//#define Body '='
//#define Head '>'
//#define Max 103
//#define FileSize 1024*1024*1024
//
//typedef void (*callback_t)(double);
//
//void process1();
//void download(callback_t);
//void process2(double rate);